A 66
b 8
c 350
d 32
:)​

d) 32

Step-by-step explanation:

If 16 blue cones are there, and the blue cones are 50 % of all cones, tat means that half or 50% of all cones are blue.

50% +50% = 100%

And hence,

16 + 16 = 32 blue cones

Hope it helps :)

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation:

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0